I have xbox360 slim . I am facing below problems. I am trying to RGH. I using nandpro(all versions) and other programs also. When I read the Nand : error: reading 250 block f9 When I write that nand: error: 202 programming block f9 when i erase the nand: error: 202 erasing block f9 Then I got E71 error. Please replay me as soon as possible how to overcome this problem ?